Winding machine



April'18, 1933. N. GRIBOJEDOFF WINDING MACHINE Filed Nov. 18, 1929 2 Sheets-Sheet l INVENTOR Nicolai Gribojedoff,

ATTORNEY April 18, 1933. N. GRIBOJEDOFF WINDING MACHINE Filed Nov. 18 19 2 Sheets-Sheet 2 INVBNTOR Nicolai -Gr1bojedofr, WW

ATTORNEY Patented Apr. 1933 V a Application mad nminbr ls; 1920, S eflalIo. 408,034,1nnd=in' Great Britain my 23,1929. 7

r This invention relates to windingimachine's for such purposes as thetprorluctionof cross wound bobbins, taper or bottleshapt-id.b 0b+ bins, ,cop bobbins and the like and bag i? its objectto provide improvemientsunthrcgd] winding machines, such improvements lbemg directed to increasing the winding capacity and also to increasingicthe speed, andthe' i and guidin'g d'evic s pi tandalongwh ch eytrat l es t e hread is pplied t0 a p:

Hitherto in machines ofthecharflder (lee-:1 scribed the tension; qcapable of being: sup-.5 portedlby y g ven th eadis that-@exj P d by the length -,between\ the tension? 1 ing device and the point; atlzwhich the' thread, reaches the bobbin orgthel like which'ifiheing wound, which may be alength offl, 3, 4101", even 6 inches; The :tension supportable; over such a length isthefresultant. Ofthlt Thegro ers and32areofconichlor tap,

following factors (a) Staple strength-J t; i (b) Staple length,@ A A. v Degree of twist, w :7. i e

of which for this purposexa) and (eymay be assumed to be constantand (b) variable 1 f The present invention consists in a thread tensioning A and guiding device wherein the thread passes in series-around aplural-ityof rollers the end roller of-whiehkisisodisposed. relatively to the surface being woundfas to ;v ibe distance t ere rom le s t an the stable; or fibre length in order'that the tension used for winding may bear a' direct relation to: the ultimate tensile strength flit-the: fibieo thread over any;

and to exceed that of the givenlength. i

Reference will now lilade to "the accum-g panying drawings whichjillustrate by way of example a construction aecordingfto invention and in which Figure l is an elevation 0t the thread i-ten sioning and guiding mechanism, "2w

.Figure 2 is a partil p z h 'li ing and guidingdevice sh0 iuEi on an-enlargedscaley 1 :1

5 Y FigureB is a sectional of ployed for. intermittently movmg the thread 1 tensioning and guiding device longitudinally of a cop or the like as the latter is wound, ,FiguresA, 5, l6jand7'are .detailviews of l the} thread tensioning andzguiding device.-

In'the errangement illustratedin 1 thesinventien iszc-shown as tpp edimjay hread i di g-ma hi d ,Ione charat'tery I bntfit stto be und rs wdthat ,itsw'use is. in

no Way limited in this respect-, 4 The th fi d tensioning a d gi ding dev ces; 28 are4211 ried by screw threaded, portions 27 0f ver -1 o tical shafts 26 around which the tensionir gg v p dl fl S- 0 6 of esethreadtwisting hnd ember-29 and surrounding the shaft Q26? l q red'z ormhwhilst th uterm0str01ler .34; of eaehiensioning and gu ing device; thatis;

1 to say, the roller-remote from thesh'aftflfi notoieoniacal shape and is-formed with :11

groovefih, this roller being driven by frictional flbntact with the rotating bobbin or cop,;,and beingusogclose to the-surface beingwound that the length of threadextending f at} any time between thergroove 3,5 of the; rQller 1 34: and the surface being wound is 3 never greater than onequarter of the length oi fibre in the thread, thus erialolingaa greatertensien :tobe'placed on thethread as-itis' wound than "in; the ordinary arrangement wherein a relatively "great; length of thread extcndsj between a threadf guide and an? articlebeingwound Sincethe windingtcn I sionxismadeto exceedkthe strength of the. thread, tighter winding is obtained, thus I 1 makinglitpossible to :wind a greater length '9 Ofthreadmn each spindle and consequently V increasing the winding capacity of: a; marchineuhaving a, given numberlof spindles. As will be clear from the'drawings the thread. 36 is;passed alternately between the rollers of the" members 29 landl3'1 when the members are in their bpenpositifon as shovviif lIIFlgllIfi i. "Themovablemembe 315 th L closed against the membebQQ with the result that the rollers 32take {up positiorishe tween thetrollers :30 and cause the threadto vi take the course indicated by the broken lines 36 in Figure 5. The thread, when drawn I through-the twisting device above described,

" isalso*subjectedto'rotation. .The thread is moved sideways in one direction by the rotal ll -nicity of the rollers, and the pressure exerted on the thread by the rollers3OTand32 a'rnore' or less twist will be imparted to the thread; and, as the thread approaches the last roller inthe .seriesithestwist on the thread .in--

creases.

Ihis will be-:-more. "clearly understood by reference to Figure 7;;whichis an *endview I I of twoofithe rollers, the-thread being shown Q in 2 sections, f'andwherein the thread 361s- '0 indicated 'as being moved by rotation ofthe: rollereo in the direction of the; arrow the'*threadbeing{thereafter turned'in 'the di-i recti'onof the arrow 3-8 and by theinext' sue- 1 .1. ceeding jre'ller in the direction of the arrow "3$ ).-;'1h e degree of twist impartedf-to the thread -and'j consequently the resistance 'of V the threadfto breakage isincrea'sed -by"it'si I pass a e-' fthrough the coned 1 rollers. 'lheg V thread is drawn through v the device by the rotation of 1 the spindle 1 being wound and V. the hightension used;fQn-winding iS" notf produced until the thread passes-from the} groovedroller'34 on to thesurface of the ar ftic le? being-Jwound. I he roller -34Lbeing .5- driven from the' bobbin or] the like will roi-J Y tate 'at thesam'e surface speed but the thread having to pass around'a groove of smaller: diameter than the roller-3l will be subject- I edto a retardation which applies the final tension in beingdrawnonto the article being'wound whose surface speedfisgreaterthan the fsurface'speed of theinterior ofthe groove; The degree of; twist depends onthe conicityz'of therollersi30 and -32 and also- ":onthe: initial pressure imparted.

Each jscrew threaded shaft 26 is carried Y .between members nforming fixed parts 0f theim'achine framework 42, each shaft being 1 f rotatable. under the :conditions hereinafter "described. --The boss33 is internally screw threadedftolengage with the screw threaded portion 27 "of the shaft 26.- As the roller 34 is' always pressed by the tension of. the

. makes a swinging: movement aboutthe shaft" 26.11 v f -As,-;the

V by the; following mechanism 7 a .Intheframework 42 (see rigul effsjsuii thickness. Ifthe pawl 45 with the ratchet oval or sphericalfrna ybe obtained. this case the screw-threaded shaft 26" is station ofthethread-guiderollers 30 and 32; which rounding a part of the length of the shaft, 26 two adjustable bolts 43 and 44 are mounted, which bolts act as stops for alpawl- 45." pivotally mountedon a lever46. carried free-I ly by the shaft 26 thesaid pawl being pressed by a spring 47 into engagement with a ratchet wheel 48 :fiir'edto the shaft '26; With this arrangement the thread -guiding and tensioningdevice moves pivotally about the axis ofthe shaft 26 as the bobbin is vertically;

"reciprocated'f'When winding from the top of bobbin'towards, thebase the guiding: and tensioning device andthe' boss 33 are turned in: clockwise direction lby' engagem ent' therewith of the ascending bobbin. 0

The boss 33 is frictionallyheld-in engagement with the screw threaded'sh-aft '26, so"

that the boss grips the-spindlesufliciently closely to ensure the spindle IlOIIIlflllY'tuI'Il-f ing with the boss( '1 As"; however, the' lower 7 portion ofa bobbinfbe'comesfully wound};- the amplitude of thepivotal movement of the boss and shaft; is,' such that the pawl 45 is brought into engagement with the stop 43 and-the rotary 'movement of the shaft 26 is stopped so that 'continuedjmovement of the boss 33 causes itlt'o beifed u'pwar'ds along.

the shaft. On the reverse movement, that is whenwinding from the bottom to the top of if the bobbin, the shaft-26- andratchet wheel 1 48 move in 'anzanti-clockwijse direction (Fig ure3) sojthatthe' pawl 4L51engages the stop V44andftheshaft ishel'd against rotation un-" v til the tension and guiding device again'engages the lower portionofthe bobbin} 1 By screwing the bolts 4r3 andit intoi'and out of the-framework 42'and securing them in adjusted position: by means of nuts 49 thewindin'g may be regulated to the desired 105 wheeled likewisemade'to slide and;-if instead of thest0ps'14c3 and 44 two curved f surfaces be attachedto the casing42,bobbins 1 of-difi'erent'and "any desiredform (such as ary and the boss i33'l"rotates} o'n' the shaft 26 Mon ail-legend bush e sha wheel; I

. the 'tensioning" deviceis "less than the speed 7 t at'which it is'wound-:this ,being-achievedby;

-' thread andagspring disposed in theiboss 7 against the cop or thelike being wound; the

I thread,;;.guiding and te'nsioning device. 28

making variable th e fresistance to rotation? thus act asthre'ad-speed regulators. Inthe present instance the bobbin sp'indle is the 7 driving member as'faras the thread is con lowerapart of the section-bf 'the'. t bobbin "whic11' .is being wound 'acqui-res a pre- 1 determineddiameter 'itis'necessaryfto raise the thread guiding and. tensioning device'28i. to .a slightly higherslevel. This-is achieved 1 cerned and the thread fisfed through the I guiding device'- 28- bybei ng -drawnf-ther,e.--

through the rotation of the bobbin s i the thread tensionlng device is pivotally 1 mounted and means automatically operated by the body being wound, when said body reaches a predetermined diameter, to raise the thread tensioning' device on said support and secure it temporarily in the adjusted position.

3. A thread winding machine including a shaft, a thread tensioning device mounted on said shaft, said threadtensioningdevice comprising a plurality of co-operating conical rollers, a grooved roller at one end of said series and driven frictionally by the article being wound means actuated by the article being wound as sections of said article become completed for adjusting the position of the thread tensioning device longitudinally of said shaft. e

4. A thread winding machine including a thread tensioning device comprising a shaft, two relatively movable elements pivoted on said shaft to rock on a common axis, tapered rollers carried by each of saidelements, the rollers of one element having a taper opposite to that of the other element, a peripherally grooved roller carried by one of said elements and frictionally engaging the article being wound, and means operative by the rocking movement of said thread tensioning deviceincident to the increase in diameter of the article being wound to cause said thread tensioning device to progress along said shaft.

5. A thread winding machine including a thread tensioning device comprising two sets of co-operating oppositely tapered rollers past all of which the thread is drawn by the rotation of an article being wound and a roller in frictional engagement with ,the article being wound and havlnga perlpheral groove through which the thread passes to such article. 7

6. A thread winding machine including a thread tensioning device comprising a pair of members pivotall connected at one end and a series of longitudinally tapered rollers mounted on each member, the taper of the rollers of one member being opposite to'that of therollers ofthe other memberand the movement of the two members toward one another causing the rollers of one member to take up axially parallel positions of the rollers of the other member.

7. A thread winding machine includinga adjacent the free end of one of said members frictionally engaging said article and having a peripheral groove through which the thread passes on its way to said article.

In testimony whereof I have hereunto'set my hand.

NIGOLAI GRIBOJEDOFF. 

